*PLUMBERSSTOCK EXPERT* responded:
Hi! We are delighted to know about your interest in the Moen 123811BN Part Cross Handle Kit. We are sorry to say that this cross handle kit cannot be used as a replacement for the Moen Adler 3-handle. According to Moen, this Moen 123811BN will only work for Posi-Temp Tub/Shower Trims. Also, Moen no longer manufacture shower trims with cross handles. The other option is, you will have to change everything and that will cost you even more. As much as we want to help you, this is the only solution we can give you. Thanks for visiting PlumbersStock.com! Have a wonderful day!